Patents by Inventor Tomohiko Ootani

Tomohiko Ootani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9791991
    Abstract: A display device with a built-in touch panel includes a first substrate, a second substrate, plural pixel electrodes provided between the first substrate and the second substrate, plural common electrodes provided between the first substrate and the second substrate, and plural detection electrodes provided on the first substrate. An image is displayed by, light control using an electric field generated between the plural pixel electrodes and the plural common electrodes. The presence or absence of touch is detected by a difference in capacitance due to the presence or absence of a material interrupting the electric field generated between one of the detection electrodes and one of the common electrodes. Each of the detection electrodes includes a through hole.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: October 17, 2017
    Assignee: Japan Display Inc.
    Inventors: Takahiro Miyazaki, Masanari Saitou, Koji Nagata, Shinji Sekiguchi, Tomohiko Ootani
  • Patent number: 9454250
    Abstract: A technique capable of reducing the number of leading lines and making the area of a frame region smaller is provided. A display device includes an in-cell touch panel in which a pair of transparent substrates is arranged so as to oppose each other, a plurality of scanning electrodes are disposed on an opposing surface of one of the transparent substrates, and detection electrodes that intersect with the scanning electrodes are arranged on an opposing surface of the other transparent substrate. The display device further includes at least one first leading lines electrically connected the scanning electrodes and configured to supply a scanning signal to the scanning electrodes, and at least one second leading lines electrically connected to the detection electrodes and configured to output a signal detected by the detection electrodes. In the display device, each of the first leading lines is connected to at least two of the scanning electrodes having different widths.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: September 27, 2016
    Assignee: Japan Display Inc.
    Inventors: Masanari Saitou, Takahiro Miyazaki, Koji Nagata, Shinji Sekiguchi, Tomohiko Ootani
  • Publication number: 20160195962
    Abstract: A display device with a built-in touch panel includes a first substrate, a second substrate, plural pixel electrodes provided between the first substrate and the second substrate, plural common electrodes provided between the first substrate and the second substrate, and plural detection electrodes provided on the first substrate. An image is displayed by, light control using an electric field generated between the plural pixel electrodes and the plural common electrodes. The presence or absence of touch is detected by a difference in capacitance due to the presence or absence of a material interrupting the electric field generated between one of the detection electrodes and one of the common electrodes. Each of the detection electrodes includes a through hole.
    Type: Application
    Filed: March 14, 2016
    Publication date: July 7, 2016
    Inventors: Takahiro MIYAZAKI, Masanari SAITOU, Koji NAGATA, Shinji SEKIGUCHI, Tomohiko OOTANI
  • Patent number: 9317166
    Abstract: A display device with a built-in touch panel includes a first substrate, a second substrate, plural pixel electrodes provided between the first substrate and the second substrate, plural common electrodes provided between the first substrate and the second substrate, and plural detection electrodes provided on the first substrate. An image is displayed by light control using an electric field generated between the plural pixel electrodes and the plural common electrodes. The presence or absence of touch is detected by a difference in capacitance due to the presence or absence of a material interrupting the electric field generated between one of the detection electrodes and one of the common electrodes. Each of the detection electrodes includes a through hole.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: April 19, 2016
    Assignee: Japan Display Inc.
    Inventors: Takahiro Miyazaki, Masanari Saitou, Koji Nagata, Shinji Sekiguchi, Tomohiko Ootani
  • Patent number: 9274664
    Abstract: A display device with touch panel includes a display panel having a display area in which pixels are arranged in a matrix form and displaying an image by outputting lights corresponding to gray levels with respect to each pixel, and a touch panel electrode as one electrode of a set of electrodes forming capacitance for sensing contact in an area superimposed on the display area, extending in one direction, including a plurality of linear transparent conducting materials arranged in parallel, and having a periodically changing line width.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: March 1, 2016
    Assignee: Japan Display Inc.
    Inventor: Tomohiko Ootani
  • Patent number: 9235304
    Abstract: Disclosed is a touch panel-equipped display device capable of suppressing an increase in the number of wires and improving detection resolution. A touch panel-equipped display device includes scanning lines and detection lines. The detection lines include first main detection lines, second main detection lines, first one-side sub-detection lines, and first other-side sub-detection lines. Each of the second main detection lines is arranged between adjacent first main detection lines. The first one-side sub-detection lines are connected together, and each first one-side sub-detection lines is arranged between the corresponding first main detection line and the second main detection line adjacent to one side of the corresponding first main detection line.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: January 12, 2016
    Assignee: JAPAN DISPLAY INC.
    Inventors: Masanari Saitou, Takahiro Miyazaki, Shinji Sekiguchi, Tomohiko Ootani
  • Publication number: 20150116243
    Abstract: A technique capable of reducing the number of leading lines and making the area of a frame region smaller is provided. A display device includes an in-cell touch panel in which a pair of transparent substrates is arranged so as to oppose each other, a plurality of scanning electrodes are disposed on an opposing surface of one of the transparent substrates, and detection electrodes that intersect with the scanning electrodes are arranged on an opposing surface of the other transparent substrate. The display device further includes at least one first leading lines electrically connected the scanning electrodes and configured to supply a scanning signal to the scanning electrodes, and at least one second leading lines electrically connected to the detection electrodes and configured to output a signal detected by the detection electrodes. In the display device, each of the first leading lines is connected to at least two of the scanning electrodes having different widths.
    Type: Application
    Filed: October 23, 2014
    Publication date: April 30, 2015
    Inventors: Masanari SAITOU, Takahiro MIYAZAKI, Koji NAGATA, Shinji SEKIGUCHI, Tomohiko OOTANI
  • Patent number: 8928830
    Abstract: In a liquid crystal display which includes a liquid crystal layer between a TFT substrate and a counter substrate, a gate electrode, a gate insulator and a semiconductor layer are laminated. A pixel electrode is formed on the gate insulator and metal source and drain electrodes are formed on the semiconductor layer and gate insulator. At least upper surfaces of the source and drain electrode contain Mo. The source is directly laminated on a portion of the pixel electrode, which portion is disposed on the gate insulating film.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: January 6, 2015
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Kenji Anjo, Tomohiko Ootani
  • Publication number: 20140375605
    Abstract: A display device with touch panel includes a display panel having a display area in which pixels are arranged in a matrix form and displaying an image by outputting lights corresponding to gray levels with respect to each pixel, and a touch panel electrode as one electrode of a set of electrodes forming capacitance for sensing contact in an area superimposed on the display area, extending in one direction, including a plurality of linear transparent conducting materials arranged in parallel, and having a periodically changing line width.
    Type: Application
    Filed: June 25, 2014
    Publication date: December 25, 2014
    Inventor: Tomohiko OOTANI
  • Publication number: 20140267159
    Abstract: A display device with a built-in touch panel includes a first substrate, a second substrate, plural pixel electrodes provided between the first substrate and the second substrate, plural common electrodes provided between the first substrate and the second substrate, and plural detection electrodes provided on the first substrate. An image is displayed by light control using an electric field generated between the plural pixel electrodes and the plural common electrodes. The presence or absence of touch is detected by a difference in capacitance due to the presence or absence of a material interrupting the electric field generated between one of the detection electrodes and one of the common electrodes. Each of the detection electrodes includes a through hole.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: Japan Display Inc.
    Inventors: Takahiro MIYAZAKI, Masanari SAITOU, Koji NAGATA, Shinji SEKIGUCHI, Tomohiko OOTANI
  • Publication number: 20140232966
    Abstract: In a liquid crystal display which includes a liquid crystal layer between a TFT substrate and a counter substrate, a gate electrode, a gate insulator and a semiconductor layer are laminated. A pixel electrode is formed on the gate insulator and metal source and drain electrodes are formed on the semiconductor layer and gate insulator. At least upper surfaces of the source and drain electrode contain Mo. The source is directly laminated on a portion of the pixel electrode, which portion is disposed on the gate insulating film.
    Type: Application
    Filed: April 29, 2014
    Publication date: August 21, 2014
    Applicants: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Kenji ANJO, Tomohiko OOTANI
  • Patent number: 8730421
    Abstract: In a liquid crystal display which includes a liquid crystal layer between a TFT substrate and a counter substrate, a gate electrode, a gate insulator and a semiconductor layer are laminated. A pixel electrode is formed on the gate insulator and metal source and drain electrodes are formed on the semiconductor layer and gate insulator. At least upper surfaces of the source and drain electrode contain Mo. One of the source and drain electrodes is directly laminated on a portion of the pixel electrode, which portion is disposed on the gate insulating film.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: May 20, 2014
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Kenji Anjo, Tomohiko Ootani
  • Publication number: 20140132557
    Abstract: Disclosed is a touch panel-equipped display device capable of suppressing an increase in the number of wires and improving detection resolution. A touch panel-equipped display device includes scanning lines and detection lines. The detection lines include first main detection lines, second main detection lines, first one-side sub-detection lines, and first other-side sub-detection lines. Each of the second main detection lines is arranged between adjacent first main detection lines. The first one-side sub-detection lines are connected together, and each first one-side sub-detection lines is arranged between the corresponding first main detection line and the second main detection line adjacent to one side of the corresponding first main detection line.
    Type: Application
    Filed: November 5, 2013
    Publication date: May 15, 2014
    Applicant: Japan Display Inc.
    Inventors: Masanari SAITOU, Takahiro MIYAZAKI, Shinji SEKIGUCHI, Tomohiko OOTANI
  • Publication number: 20140009715
    Abstract: In a liquid crystal display which includes a liquid crystal layer between a TFT substrate and a counter substrate, a gate electrode, a gate insulator and a semiconductor layer are laminated. A pixel electrode is formed on the gate insulator and metal source and drain electrodes are formed on the semiconductor layer and gate insulator. At least upper surfaces of the source and drain electrode contain Mo. One of the source and drain electrodes is directly laminated on a portion of the pixel electrode, which portion is disposed on the gate insulating film.
    Type: Application
    Filed: September 10, 2013
    Publication date: January 9, 2014
    Applicants: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., HITACHI DISPLAYS, LTD.
    Inventors: Kenji ANJO, Tomohiko OOTANI
  • Patent number: 8537298
    Abstract: In a liquid crystal display device of IPS mode with a smaller number of layers, a gate electrode is formed on a TFT substrate. A gate insulating film is formed to cover the gate electrode, on which a semiconductor layer is formed. A drain electrode and a source electrode are placed on the semiconductor layer. A planar pixel electrode is formed from ITO on the gate insulating film prior to the formation of the drain electrode, source electrode, image signal line, and the like. This process is performed to prevent the image signal line, the drain electrode, the source electrode, and the like, from being consumed by the cell reaction through a developer during the patterning of the ITO when a pin hole is present in the ITO, in order not to cause disconnection. As a result, it is possible to improve the production yield and achieve high reliability.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: September 17, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Kenji Anjo, Tomohiko Ootani
  • Publication number: 20120075564
    Abstract: In a liquid crystal display device of IPS mode with a smaller number of layers, a gate electrode is formed on a TFT substrate. A gate insulating film is formed to cover the gate electrode, on which a semiconductor layer is formed. A drain electrode and a source electrode are placed on the semiconductor layer. A planar pixel electrode is formed from ITO on the gate insulating film prior to the formation of the drain electrode, source electrode, image signal line, and the like. This process is performed to prevent the image signal line, the drain electrode, the source electrode, and the like, from being consumed by the cell reaction through a developer during the patterning of the ITO when a pin hole is present in the ITO, in order not to cause disconnection. As a result, it is possible to improve the production yield and achieve high reliability.
    Type: Application
    Filed: September 12, 2011
    Publication date: March 29, 2012
    Inventors: Kenji Anjo, Tomohiko Ootani